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University of California Los Angeles

One amazing aspect of living in the era of social media is the incredible way information spreads. A butterfly batting its little orange wings in a monarch grove in Santa Cruz could influence a tweet of a blogger heard 'round the world.

Nature Medicine carried a piece Friday by CIRM governing board member Jeff Sheehy, writing about the importance of having a patient advocate voice in biomedical research. Sheehy, who is living with HIV, is a long-time advocate for HIV/AIDS research.

Researchers at the University of California, Los Angeles have found genetic differences that distinguish induced pluripotent stem (iPS) cells from embryonic stem cells. These differences diminish over time, but never disappear entirely. iPS cells are created when adult cells, such as those from the skin, are reprogrammed to look and behave like embryonic stem cells. But until now, scientists didn't know if the two types of stem cells were actually identical at a molecular level. This latest research shows that iPS and embryonic stem cells differ in which genes they have turned on or off.

Researchers at the University of California, Los Angeles have matured induced pluripotent stem (iPS) cells into what appear to be normal motor neurons. This work shows that iPS cells can mature into cells that appear similar to those derived from human embryonic stem cells â a finding that has important implications for people hoping to create new therapies based on iPS cells. These cells are created by reprogramming adult cells back into a pluripotent state that resembles embryonic stem cells.

Researchers at UC, Los Angeles have found that blood-forming stem cells in mice have their origins in the endothelial cells that line blood vessels during mid-gestation. These cells eventually move to the bone marrow where they generate all the cells of the blood system throughout life. Researchers have long known that blood-forming stem cells arise from the blood vessels, but didn't know exactly which cell type acted as the source. Now that the source is know, the researchers want to learn what signals those endothelial cells to begin producing blood-forming stem cells.